Home / 1,432,188.45-1,976,472.09-820,459.44

Finding the Fourth Proportional to 1,432,188.45, 1,976,472.09 and 820,459.44

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Solution

The fourth proportional to 1,432,188.45, 1,976,472.09 and 820,459.44 is: 1,132,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,188.45 : 1,976,472.09 = 820,459.44 : x
  2. Step 2: Convert to fraction form
    1,432,188.45/1,976,472.09 = 820,459.44/x
  3. Step 3: Cross multiply
    1,432,188.45x = 1,976,472.09 × 820,459.44
  4. Step 4: Simplify right side
    1,432,188.45x = 1,621,615,184,137.03
  5. Step 5: Solve for x
    x = 1,621,615,184,137.03/1,432,188.45
  6. Step 6: Final answer
    x = 1,132,263.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.